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For use on bare, solid wood with a minimum thickness greater than 12mm.
- Soaks virtually ‘invisibly’ into the wood.
- Achieves Euroclass B s2 d0 (replaces UK Classes ‘0’ and ‘1’ BS 476 Part 6/7*).
- Can be overcoated for decorative purposes with waterborne, non-flammable stains, varnishes and paints.
- For internal and external use.
- Simple Certification Application following purchase and application.
- Fire retardant properties will remain active for the lifetime of the substrate.
- Each 5L will treat 20m² and 20L will treat 80m².
- Part of Rawlins Paint's fire protection range of coatings.
- 250ml Sample Size is now available - see Zeroflame Samples.
Zeroflame Fire Retardant Treatment is a water based, clear solution that soaks into wood to leave the appearance of the timber virtually unchanged. Applied by brush, roller, spray, or immersion it achieves Euroclass B s2 d0 (replaces UK Classes ‘0’ and ‘1’ BS 476 Part 6/7*) on solid timbers. Zeroflame Fire Retardant Treatment can be used inside or out and the fire retardant properties will remain active for the lifetime of the substrate.
Zeroflame Fire Retardant Treatment soaks into the woods surface, without leaving a clear glaze on top like a varnish. It then dries with virtually no evidence of the wood ever been treated, allowing you to keep the woods natural beauty. Zeroflame Treatment does not require over coating, however it can be over coated with waterborne, non-flammable stains, varnishes and paints for decoration and/or protection if desired (care should be taken that the fire retardant properties are not compromised).
Please Note: Timber must be a minimum of 12mm thick for the treatment to be effective.
Un-Matched Performance
To say that Zeroflame Fire Retardant Treatment is revolutionary is an understatement, this remarkable product will protect timber substrates in commercial and domestic environments, can be used internally and externally, classifies solid wood as having little or no contribution to fire, is non-hazardous, non-corrosive and virtually odour free, the list goes on! Never before has there been such a simple product to use for the protection of timber against fire.
Zeroflame's Fire Resistant Products
Find out more about other fire retardant paints and intumescent coatings from Zeroflame here, all available at Rawlins Paints.
***NEW 250ml Sample size is now available***
Please note the below regarding 250ml samples:
- No fire certificates can be requested or provided following purchase of a 250ml sample regardless of project size
- 250ml Sample covers up to 1m²
- We would always recommend a sample be taken to check appearance, absorption and any potential topcoat compatibility prior to purchasing any larger amount
Quick Links - Click To Jump To Section:
- Features & Benefits
- Application Areas
- Directions for Use
- Application
- Drying Times
- Overcoating
- Protection Period
- Certification
- Storage & Disposal
- Limitations
Features & Benefits
- Each 5L will treat 20m² and 20L 80m²
- Protects internal & external timber to Euroclass B (replaces BS Class 0 / 1*)
- Leaves no visible finish for a natural appearance
- Must be applied to bare timber ONLY
- Can be applied by brush, roller, spray, or immersion
- Tested and approved to various standards
- Can be overcoated with waterborne, non-flammable varnishes, stains and paints
Zeroflame Fire Retardant Treatment Advantages
- Moisture resistant and unaffected by humidity
- Classifies solid wood as having little or no contribution to fire
- Tested to EN 927-6 & EN16755 accelerated weathering: rated as EXT1.
- Simple specification
- Suitable for non-specialist application
- Suitable for off-site application
- Non-corrosive
- Non-hazardous
- Virtually odour free
- Unaffected by wear
- Maintenance free
- Does not require over coating except for decoration
Application Areas
Externally – log cabins, timber cladding, fencing, garages, sheds, saunas, etc.
Internally – timber ceilings, wall panelling, tongue & groove, staircases, floors, etc.
Directions for Use
Check the surface is absorbent and has not been previously sealed by other coatings. The substrate must be absorbent. It is possible to apply to previously painted or varnished wood if removed completely by sanding back to the original surface.
Application
Each square metre of wood requires 250ml of Zeroflame Fire Retardant Treatment. Application method, site conditions, absorption rate of the timber, etc. will all impact on the number of coats it takes to achieve the require coverage rate.
Do not mix with other solutions, stir well before use.
Use as supplied. Do not dilute.
Test on a small area first to ensure finish is acceptable.
Ambient temperature should be above 10°C.
Moisture content of wood should be below 15%.
The use of eyewear, gloves and mask is good practice and recommended.
Clean tools and overspill with absorbent paper and water.
Apply by brush, roller, spray or immersion.
After treatment of the substrate with Zeroflame Fire Retardant Treatment, the appearance of the timber should be virtually unchanged.
Please Note: For both internal and external use it is recommended that a sample of the substrate is coated to establish both absorption properties and possible colour change, particularly when used externally without a protective finishing coat as moisture may create a change in colour.
Care must be taken to comply with the coverage rate, including allowance for wastage, as inadequate application will affect the fire protection.
Drying Times
- Drying time is 6-12 hours @ 20°C / 65% relative humidity
- Protect externally treated surfaces from exposure to weather for 48 hours immediately after application
- Minimum temperature for application is 10°C
- Do not apply to frozen substrate
Please Note: Drying times are dependent upon the absorption characteristics of the substrate and drying conditions. At low temperatures and/or conditions of relative humidity, drying times will be extended.
Overcoating
Zeroflame Fire Retardant Treatment does not need anything to be applied over it, however where a final decorative finish is required, a water-borne, non-flammable varnish, wood stain or paint maybe used. The substrate must be fully dry before over-coating. We advise checking the moisture content of the substrate prior to application and applying the top coat to the manufacturers instructions. A small area of the substrate should be tested for compatibility before the full, final coat if applied.
Protection Period
Fire retardant properties will remain effective for the lifetime of the substrate.
Certification
To receive a 'Certificate of Supply' for your purchase, after application of the product, simply complete the form HERE and a certificate will be returned to you within 7-10 working days.
Fire behaviour is classified to BS EN 13501-1:2018 B ,s2, d0.
For interior and exterior use tested to EN 927-6 & EN16755 accelerated weathering: rated as EXT1.
Storage & Disposal
Store above 5°C, protect from frost, use within 6 months of purchase.
Zeroflame Fire Retardant Treatment is an ecologically friendly material that can be safely disposed of as a household product.
Limitations
- Discolouration may occur on some types of timber or on heavily knotted wood. If this is a concern it is recommended that a sample area is completed before application to the whole project. Alternatively, application of a compatible varnish or stain AFTER application of Zeroflame Fire Retardant Treatment may help overcome this phenomenon if it is unacceptable
- Zeroflame Fire Retardant Treatment is not suitable for veneer, plywood laminates, wood-derived particle board or similar as it cannot penetrate. Zeroflame Fire Retardant Paint or Thermoguard Fire Varnish BS Class 1/0 & EN Class B System is recommended instead
* This product has not been tested to BS 476 Parts 6 & 7, Class 1/0 so if this is the level of protection you require you should check with your authority prior to use that they will accept BS EN 13501-1:2018 B s2 d0 as a suitable alternative before proceeding.
IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.
Data sheet
- Manufacturer
- Zeroflame
- For Use By
- Consumer Use
- Interior / Exterior Use
- Interior & Exterior
- Application Method
- Brush, roller spray
- Single, Two or Three Pack
- Single
- Product Certifications
- Achieves Euroclass B s2 d0 (replaces UK Classes ‘0’ and ‘1’ BS 476 Part 6/7*)
- Pack Size
- 5L, 20L
- Coverage
- 4m² per litre
- Min. Application Temperature
- 10°C
- UN Number
- N/A
- Drying time
- 6-12 hours @ 20°C / 65% relative humidity
- Base Type
- Water-Based
- Suitable For Use On
- Wood
- Application Method
- Brush
- Application Method
- Roller
- Application Method
- Spray
- Best Seller
- Best Seller
- Fastest Delivery
- Next Working Day
- Colour Family
- Clear
Questions
Question about the product
Sam Brown on 2024-12-05 10:49:36 | Question:
Hi, |
Answer from Rawlins’ Technical Team:
Assuming the oak frame is completely bare, solid timber, with a minimum thickness of 12mm, this product can be applied to this type of timber. Once the treatment is applied there is no requirement for re-application as it protects for the lifetime of the substrate. | |
DAMON on 2024-09-16 12:27:03 | Question:
Can I use Zero Flame on 12mm WBP Ply ? |
Answer from Rawlins’ Technical Team:
Unfortunately no this is not suitable for application to plywood. Please complete the timber form on the link below so we can assist with a specification. | |
Drew on 2024-09-16 05:01:23 | Question:
I'm looking to box in an old metal stair balustrade in a building conversion to residential apartments. The staircase is both normal entry and egress route but is also cosidered the fire exit. I have purchased 9mm ply and 6mm walnut veneer sheets to face the ply. As the overall width of both materials will be 15mm, would that meet your 12mm minimum requirement, or are the considered on their own widths? Also is the product ok to be used on veneer? If not do you have any products that will work. I'm looking for 60 mins protection. Thanks in advance Thanks |
Answer from Rawlins’ Technical Team:
Unfortunately the product cannot acheive 60mins and it is not suitable for application to plywood or a veneer. Please complete and return the timber form on the link below so we can assist with a specification. | |
Aaron Pearson on 2024-05-20 08:27:28 | Question:
Hello, is this product suitable for use on 18mm hardwood plywood? |
Answer from Rawlins’ Technical Team:
No, this product is recommended for application to bare, solid wood, with a minimum thickness of 12mm>. Please e-mail [email protected] for further details of your requirements. | |
Wayne on 2024-02-06 13:46:59 | Question:
Is this product suitable for use in a swimming pool environment? |
Answer from Rawlins’ Technical Team:
Assuming the treatment is applied in the correct humidity and allowed to dry fully before any other product is used nearby, this should be fine assuming application is to bare, solid wood with a minimum thickness> 12mm to achieve a Fire Rating of B s2 d0 to the timber it is protecting. The chemicals should not affect this product once it is cured sufficiently. Please e-mail your intended requirements to [email protected] and we can look to assist further. | |
Duncan on 2024-01-16 11:54:44 | Question:
I have a oil storage tank for the heating of my home. There is a screen around the tank constructed of the same material as my barn (pre-painted timber cladding). According to the regulations, this has been built too close to the tank. If I use this product, will this create a sufficient barrier bearing in mind the timber has already been painted. Many thanks. |
Answer from Rawlins’ Technical Team:
Unfortunately no. This product is designed for use on bare, solid wood with a minimum thickness >12mm. We have contacted you directly to request more information. | |
Roger Hick on 2023-11-20 16:02:31 | Question:
Hello, we are cladding a building with Siberian Larch and need to achieve Euroclass B-s1-d0. I understand your Zeroflame Clear Fire Retardant finish will achieve this. Do we need to coat both faces? Many thanks |
Answer from Rawlins’ Technical Team:
Assuming the cladding is bare, clean, solid wood with a minimum thickness of 12mm, all areas to be treated should be coated by using immersion, spray, brush or roller and allowed to soak into the woods surface allowing all of the timber to treated. This product is normally applied to the outside face of the timber, but we would recommend to consult building control for their requirements and approval to use this product. | |
Rick Lawrence on 2023-10-04 17:17:06 | Question:
Firstly, I am looking for a product that can achieve a fire rating better than b s3 d2 on untreated larch cladding. Can this product achieve this? Secondly I understand that this product has been through an accelerated weather test. My Building Control will require certification of this test to show that the treatment lasts for at least 10 years. Can this be provided? Thanks Rick Lawrence |
Answer from Rawlins’ Technical Team:
Assuming the thickness of the timber is greater than 12mm, this product will be suitable for this application type as it will achieve the rating you require, providing protection for the lifetime of the substrate. | |
Pat Hall on 2023-09-14 12:35:26 | Question:
I want to reclad a park home - probably in thermowood - and although building regs don't apply I will be using zeroflame treatment for my own piece of mind. Can you recommend any brands of non flamable wood stain that will be suitable without sacrificing the fire retardant properties of the product. I want to use a translucent or semi-translucent stain NOT an opaque stain/paint. |
Answer from Rawlins’ Technical Team:
This product can be overpainted with a water based and non flammable paint, varnish or stain. | |
Scott Macbeth on 2023-06-19 13:48:17 | Question:
Hi, I am looking to spray timber fencing with this product. Can it be applied with an airless spray gun set up. Thanks |
Answer from Rawlins’ Technical Team:
This product can be applied by brush, roller or spray application. | |
David on 2023-06-15 10:55:47 | Question:
Hi, What is the VOC of this product? Is it classed as low VOC? |
Answer from Rawlins’ Technical Team:
This product is described as virtually odour free and non-hazardous. Further information on the VOC's and ingredients within the product can be found in the Safety Data Sheet. This can be found in the data sheets tab on the product page. | |
Adam Freemantle on 2023-05-31 14:32:50 | Question:
Can this product be applied over a water based varnish and still work effectively? |
Answer from Rawlins’ Technical Team:
Unfortunately no, this product cannot be applied to a previously painted or varnished timber. | |
i williams on 2022-12-12 16:45:46 | Question:
building control have advised that i need to treat some british red cedar (17mm thick) to achieve perfoemance of C-s3,d2. would this product be suitable |
Answer from Rawlins’ Technical Team:
Assuming the cedar timber is bare, over 12mm thick, this product will exceed the requirement of C-S3, d2 and achieve Euroclass B s2 d0. | |
Sam Russell on 2022-10-04 09:15:42 | Question:
Building control have requested a produce that achieves Class o spread of flame and also 30-60min fire resistance. This produce has the Class o Spread of flame rating, but I can't see on the data sheet if it achieves 30-60 min fire resistance. |
Answer from Rawlins’ Technical Team:
This product does not achieve 30 or 60mins, only class 0. Please send the information below to [email protected] and we can assist with a specification. GENERAL TIMBER SURFACES | |
Shaun on 2022-06-12 15:47:42 | Question:
Will timber treated with this product be suitable for contact with PVC sheathed electrical cable (e.g. cable clipped to timber). |
Answer from Rawlins’ Technical Team:
This is a penetrative treatment that is absorbed into the timber. We would recommend seeking approval from building control for the application of any fire protection product. | |
Ron Kasner on 2022-04-29 07:55:05 | Question:
Hi Following research of yours and other products as to the standards met, I have just purchased 10 litres of Zeroflame fire retardant treatment believing it meets Euroclass B-S1, d0. BS EN13823 & BS EN 11925-2. The certificate I have received refers to... "This certificate is issued as evidence of the SUPPLY and APPLICATION of ZEROFLAME® FIRE RETARDANT TREATMENT to provide Class 1 and Class 0 Flame Spread Protection to timber on the above named site in accordance with BS476 Parts 6 & 7 (1987)". Also the image of the product container shown on yours and Rawlins Paints website has a panel referring to the meeting BS EN 13823 & BS EN 11925 and meeting Class 0. There is nothing on mine. In conclusion. My Building Control have asked for the product to meet Euroclass B-S1, d0. BS EN13823 & BS EN 11925-2 and I have nothing to cross reference or verify this other than the written description on the Rawlins website. Can you please advise or provide something in writing to verify the product meets my councils required standards. Thanks and regards, Ron Kasner |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment acheives Euroclass B-s2-d0 (s2: Smoke Production, d0: Flaming Droplets) (Equivalent to UK "Class 0" BS 476 Part 6/7) not the B-s1-d0 you have previously mentioned. S2 is the smoke intensity level, S2 is emmisions with average volume intensity. S1 is emmisions absent or very little. The product does not meet S1. | |
Ron Kasner on 2022-04-05 20:12:41 | Question:
Hi, I will be treating Abodo flat sawn cladding with the Zero Flame product, where Abodo is a thermally modified radiata pine from New Zealand. The boards are of an interlocking profile and are of a 20 mm thickness. Are there any special considerations in the application of Zero Flame Fire retardant treatment for the Abodo other than the general directions given here in the general product information? Thanks and regards, Ron. |
Answer from Rawlins’ Technical Team:
Providing the timber doesn’t have any coating or treatment to hinder the impregnation of the Zeroflame Fire Retadant Treatment and the timber has a mass greater than 400kg/m3 and a minimum board thickness of 12mm it will achieve BS EN 13501-1:2007+A1:2009 B,s2, d0. It is recommend to do the simple water test first where a small amount of water is put on the surface and if it soaks in then the treatment will do the same and likewise if it beads of the surface then it likely not to penetrate. | |
Graeme on 2022-04-05 13:16:55 | Question:
Can you achieve EuroClass B on any species of timber, and do you have specific test results for each species, specifically WRC and Obeche? Many thanks |
Answer from Rawlins’ Technical Team:
The criteria for the Zeroflame Fire Retardant Treatment is that if the timber has a mass greater than 400kg/m3 and a minimum board thickness of 12mm it will achieve BS EN 13501-1:2007+A1:2009 B,s2, d0. | |
Laura Hanley on 2022-04-01 08:47:15 | Question:
What depth of impregnation can be achieved with this product and what is the best method of application to achieve the best level of impregnation? |
Answer from Rawlins’ Technical Team:
This product can be applied by brush roller or spray application with equipment such as the 20 Litre Backpack Knapsack Pressure Sprayer. The timber must be 12mm thick or greater to achieve Euroclass B (BS Class 0). | |
MARTIN USHER on 2022-03-21 16:23:55 | Question:
Hi - can this product be applied with a hand pump sprayer? |
Answer from Rawlins’ Technical Team:
Yes this can be applied with a hand pumped pressure sprayer such as 20 Litre Backpack Knapsack Pressure Sprayer. The coverage ratio for Zeroflame Fire Retardant Treatment is 4m² per litre. | |
Edward O'Connell on 2022-01-28 16:21:56 | Question:
Can Zeroflame be used over Limewashed Oak Cladding, alternatively can Zeroflame treated Oak Cladding be overcoated with Lime Wash? |
Answer from Rawlins’ Technical Team:
No, Zeroflame Fire Retardant Treatment should be applied first to a bare suitable substrate and given time to be absorbed. Then assuming the lime wash treatment is water based and non flammable it can be applied. | |
Richard on 2022-01-21 15:34:07 | Question:
Can you paint this onto treated timber? |
Answer from Rawlins’ Technical Team:
Assuming the timber is bare and absorbent, yes this product would be suitable. | |
Russell on 2021-11-16 10:46:26 | Question:
Is this product suitable for new cedar shingles to comply with building regs? They would be dipped so that they are fully coated before installation. The problem is that it cedar shingles taper from 2mm to 10mm thick making this too thin for this treatment. Can you recommend a suitable product? |
Answer from Rawlins’ Technical Team:
Assuming the shingles are bare, this product could achieve Class 1 level of fire protection on the shingles. Unfortunately they are too thin to achieve a Class 0 level of fire protection. | |
michael tarring on 2021-09-28 16:17:03 | Question:
Hi. We want to apply this to some natural western red cedar timber cladding. Will it effect the natural silvering process that occurs with this timber? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment does not effect the natural silvering process on timber. For application to cedar the coverage rate is reduced to 2.7m² per litre. | |
Martin Garrard on 2021-08-22 17:47:49 | Question:
Hi Can this product be applied to an already painted wooden boxing or does the existing paint need to be stripped before applying ? If the answer is no do you do a product that can go directly onto painted wood ? Thanks Martin |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment must be applied to bare timber only - an alternative system that will achieve Class 1/0 and be applied over previously painted surfaces would be Thermoguard Safewood Anti-Viral Fire Protection System. | |
Kevin Hinton. on 2021-08-17 18:26:42 | Question:
Several people have asked how to achieve the required coverage rate of 270ml/Sqr metre, how can this be determined on fixed timber cladding? Is it OK to assume I have achieved the required coverage, in one coat, if I have completely used 5L on a surface area of 18.5 Sqr metres(non cedar). |
Answer from Rawlins’ Technical Team:
If you have used 5ltr over the 18.5m² and it has been applied evenly over the area yes. | |
Taiwo Oridedi on 2021-06-15 19:15:47 | Question:
Hey, can Zero flames retardant last up to 1 hour and how long will it take to deliver it to my country Lagos Nigeria? |
Answer from Rawlins’ Technical Team:
No, unfortunately this product will only achieve Class 0 level of fire protection on suitable substrates. We can ship to UK mainland addresses. | |
Stuart john on 2021-06-10 20:14:32 | Question:
Hi build shepherds huts design into Burgar van and got a wood curved ceiling is this the right fire protection and are you able to paint over it please |
Answer from Rawlins’ Technical Team:
This protect can achieve Class 0 level of fire protection on bare solid timbers. This can be overpainted for decorative purposes with water based paints. | |
Simon Mould on 2021-05-17 04:48:09 | Question:
Hi. Can you confirm that this product is suitable for use on Vastern Brimstone Poplar? https://www.vastern.co.uk/cladding/brimstone-poplar/ Thanks |
Answer from Rawlins’ Technical Team:
Yes Zeroflame Fire Retardant Treatment is suitable for application to thermally modified timber. | |
Paul Elliott on 2021-04-23 10:22:34 | Question:
Morning. Do you have a suitable product that will give Class O rating that we can spray over MFMDF panels. We are making fixtures from these panels (link below) and need a Class O fire rating. https://www.egger.com/shop/en_GB/interior/decor-detail/H1176_37 |
Answer from Rawlins’ Technical Team:
Assuming these panels are for an internal application, a white finish is suitable, the panels are clean, dry, sound and prepared as detailed in the Technical Data Sheet we can recommend Zeroflame Fire Retardant Paint. | |
James Gerard on 2021-03-23 12:59:58 | Question:
Does this product achieve Euro Class B (B-s3,d2 or better) on Iroko Thermowood 20mm thickness? Thanks |
Answer from Rawlins’ Technical Team:
Yes, assuming the timber is bare, clean, dry, sound and prepared as detailed in the Technical Data Sheet this can be applied to Thermowood to achieve Class B. | |
chris taylor on 2021-03-19 13:47:15 | Question:
Hi Can I overcoat the Zeroflame clear treatment on cedar cladding with Osmo UV protection oil. Osmo make up (not water based): Based on natural plant oils (sunflower oil, soya oil, thistle oil and linseed oil), siccatives (drying agents) and additives, biocidal active ingredient: Propicona- zole. Dearomatized white spirit (benzene-free). EU limit value for this product (cat. A/e): 400 g/l VOC (2010). This product contains max. 400 g/l VOC. or do you have a suitable matt waterbased UV protective alternative (we want the natural new cedar colour without it going grey)? |
Answer from Rawlins’ Technical Team:
No, Zeroflame Fire Retardant Treatment cannot be overcoated with Osmo oil, it can be overcoated for decorative purposes with products that would not effect it’s fire protection level. Unfortunately we do not have a clear product to recommend to prevent the Cedar going grey. | |
Luke on 2021-02-10 16:00:22 | Question:
Is this product suitable to use on an exposed basement ceiling to give a resistance time of 1 hour. Also can this be applied on top of products such as Ronseal Wood Filler, Varnish etc. |
Answer from Rawlins’ Technical Team:
No, Zeroflame Fire Retardant Treatment can achieve Class 0 Level of fire protection on a suitable, bare timber substrate, not 1 hour. We have contacted you directly for more information to assist you with the project. | |
jenny on 2021-02-03 16:48:31 | Question:
Can this be used on timber decking on a balcony |
Answer from Rawlins’ Technical Team:
Assuming you require a Class 0 level of fire protection, the timber is bare, clean, dry, sound and preapred as detailed in the Technical Data Sheet it could be used on a timber decking. | |
Farah on 2021-01-31 03:32:52 | Question:
If outbuilding is less than a metre away frok boundary and needs to meet building regs because of size, can this be used on the area that are within the 1 metre boundary or must it be used all over? I have a cedar front face only on the building which has a concave cedar frame within the 1m boundary. Thanks |
Answer from Rawlins’ Technical Team:
Assuming the Cedar is bare and the level of fire protection you require is Class 0 this could be used. We would recommend to consult Building Control to ascertain what level of Fire Protection is required for this project. | |
Matt on 2020-12-03 20:42:36 | Question:
Hi there. Can this treatment be overcoated by a Sansin SDF Natural stain - which is a water-borne oil and resin colour stain? Many thanks |
Answer from Rawlins’ Technical Team:
Waterborne stains or varnishes can be used over Zeroflame Fire Retardant Treatment as long as they are compatible, non-flammable and will dry. We always recommend to try a small sample area first to ensure the stain does not react with the Zeroflame Fire Retardant Treatment and will dry out. | |
Nic on 2020-05-21 15:07:06 | Question:
We have been asked to quote using on of your products,Clear intumescent finish Zeroflame, for internal cladding,can we apply and then 1 coat cuprinol garden shades on top of the above, and is it a 1 coat or 2 coat system ? |
Answer from Rawlins’ Technical Team:
Waterborne stains or varnishes can be used over Zeroflame Fire Retardant Treatment as long as they are compatible, non-flammable and will dry. We always recommend to try a small sample area first to ensure the stain does not react with the Zeroflame Fire Retardant Treatment and will dry out. Each square metre of wood must receive a minimum of 270ml of Zeroflame Fire Retardant Treatment (360ml per square metre if applying to Cedar woods) - as long as this consumption is achieved it can be done in as many or as few coats as you wish. Depending on application method we would expect this to take 2 - 3 coats to acheive. | |
Steve Francis on 2020-01-15 10:06:26 | Question:
We have a new development over 4 storeys that is partially clad in 18mm thick red cedar on 38mm pine battens over masonry block work. Assuming correct application, does this product penetrate through the timber completely to provide fire resistance and is it a one off treatment? Could you also let me know what the maximum depth of penetration is and whether it would go as far as the battens beneath and protect these as well as the cladding itself? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment is a one-off treatment that will last the lifetime of the timber. The treatment will not penetrate entirely through the cladding to treat the battens also, so the cladding may need removing if the battens need treating too. | |
sean flaherty on 2019-12-16 18:04:21 | Question:
Hi, does this product allow cedar to age/colour naturally (ie turn silver in colour) |
Answer from Rawlins’ Technical Team:
Yes, also be aware of reduced coverage rate of the product on cedar woods which reduces to 13.5m² per 5L and 54m² per 20L. | |
Howard on 2019-12-03 14:39:13 | Question:
Hi. Does this product ome with a BBA certificate for UK building regulations? |
Answer from Rawlins’ Technical Team:
A certificate is issued by the manufacturer for every succesful application of Zeroflame Fire Retardant Treatment (a certificate application form must be completed and submitted either online or by post after use). BBA certification is not held due to BBA being unable to carry out fire testing, instead for this BBA are reliant on fire test centres such as Exova, BRE etc. We have forwarded a copy of the test data held for Zeroflame Fire Retardant Treatment to your email address for perusal. | |
Rhian Evans on 2019-11-21 09:39:34 | Question:
Hello. We used your product on an oak lintel as part of a small extension and building control have asked for the certificate as part of their measures. Please could you reply with a certificate. Thank you. Rhian. |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment has a certificate application form on the reverse of the label for you to complete and send back to the manufacturer for your certificate. | |
Michael on 2019-11-01 15:20:24 | Question:
You mention the test for Thermowood - I need to use the zero flame product on Thermowood (Pine) please can you forward the test information. Thanks |
Answer from Rawlins’ Technical Team:
This has been sent to your email address. | |
David on 2019-10-21 22:31:09 | Question:
Hi, I'm planning to install approx 14.5 sqm (4.8 x 3m) of bare softwood, probably pine, t&g cladding to one wall and the ceiling of my porch. Building Control require the timber to be treated to be fire retardant class 1 standard. This will have a decorative top coat of water based paint. Is Zeroflame Fire Retardant Treatment, 5L, suitable and is there minimum thickness for the t&g cladding? Many thanks, David. |
Answer from Rawlins’ Technical Team:
Without performing an indicative test on the thickness of timber you wish to use, it is impossible to know how thin the wood could be and still achieve class 1. 14mm is the requirement with this product for Class 0. | |
David on 2019-10-18 17:48:04 | Question:
Hi can Zero Flame be used to treat wood that has already been charred in the Japanese Sugi Ban style? If so does it still achieve Euro class B? |
Answer from Rawlins’ Technical Team:
Yes, Zeroflame Fire Retardant Treatment does provide Euro Class B on charred timber. As with any solid timber substrate, as long as it soaks in the Zeroflame Treatment it will provide the fire protection. | |
Stewart on 2019-10-18 12:10:13 | Question:
I note an earlier question about the use of this product to protect a fireplace lintel where the response was that it would not 'insulate' the lintel. Can you clarify what is meant by this and the implication? I would like to use the product to protect a fire surround of timber that has previously been painted but has been thoroughly stripped. The heat from the stove is causing the timber surround to reach temperatures in excess of recommended safe levels (circa 70 degrees C) and I am looking for a product to protect the surround from the radiant heat. |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment protects timber aginst the spread of flames not against heat. The product doesn't provide insulation ie will not prevent the timber from heating up if it is too close to the heat source. Unless you use a heat resistant paint which wil not flake off if exposed to high temperatures then it will not resolve the problem I'm afraid. | |
Michael on 2019-09-30 11:53:01 | Question:
Hi, Is this a one coat application process ? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment needs to be applied at a rate of 270ml per m² of bare timber (360ml per m² when applying to cedar), whether you achieve this application rate in 1 coat or more doesn't matter, as long as it is achieved. Applying by spray (i.e. knapsack sprayer, HVLP, etc.) usually allows applicators to achieve the required coverage rates in 1 coat, applying by brush/roller would usually take more, i.e. 2-3 coats. | |
Julie on 2019-09-25 12:14:46 | Question:
Please can I have a copy of the test certificate? We have used the product on an oak annexe and building control want more details. Unfortunately the packs were discarded before I could take a note of the batches. do you have records for batches purchased in July? |
Answer from Rawlins’ Technical Team:
These have been forwarded to your email address as requested. | |
simon reid on 2019-09-05 12:54:09 | Question:
we have a situation where cedar shingles (wood tiles) are required to provide surface spread of flame to class 1 (european class B). Can this be achieved with your zero flame product applied insitu? what is its lifespan and is its efficacy affected by it being applied to the outside only? i.e. we cannot cover the underside of the tiles. because of the nature of the tiles the total thickness when laid is approx. 18-20mm |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment will achieve Euroclass B on cedar when applied at a rate of 360ml per square metre. It is fine to be used externally and will remain effective for the lifetime of the timber. With regards to whether application to the top surface only will be sufficient or not would be a matter for your authority to comment on. | |
Adam on 2019-08-19 13:04:42 | Question:
Please, do you have a test certificate for the effect of this product on Thermowood? Thanks. |
Answer from Rawlins’ Technical Team:
Yes we have an indicative test carried out by a laboratory which a copy of the report has been forwarded to your email address. | |
Paul Bolster on 2019-08-02 13:59:12 | Question:
Hi, is this product on sale in Ireland or is it best to purchase from your website? I'm in the Dublin/Kildare area. Thanks |
Answer from Rawlins’ Technical Team:
We dispatch nationwide however we would require your full address in order to provide a quotation for carriage to your location. Please contact our sales team on 0113 2455450 (option 1) or [email protected] to provide your address details and receive an accurate price/lead time. | |
Livia Qing Wang on 2019-06-25 17:06:53 | Question:
We need to coat 5mm thick tongue and groove boards (Southern Yellow Pine) covering the ceiling of our new kitchen extension, to BC class 0 or better. Currently the boards have not been treated in any way and we don't want the appearance to change. Is this product suitable? |
Answer from Rawlins’ Technical Team:
Assuming that 5mm is a typo (this is VERY thin for T&G) and that infact it is considerably thicker than this - 50mm for example, then as long as the timber is bare Zeroflame Fire Retardant Treatment would be ideally suited to this application. | |
Nick Wager on 2019-06-13 13:28:35 | Question:
Do you have a copy of the test certificate. We are looking for a fire retardant treatment to apply to solid European Oak wall panels which are required to meet B.s1.d0 ( class 0 ) Thank you. |
Answer from Rawlins’ Technical Team:
Yes, a copy of the test certificate has been sent to your email address. | |
darren on 2019-04-24 10:38:15 | Question:
will this effect the finish of white ash |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment makes very little change to the appearance and finish of the timber. We do recommend you try a small area first and allow it to dry to ascertain you are happy with the appearance and finish before coating the whole area. | |
Gary Alner on 2019-04-15 15:58:42 | Question:
Does the certificate you supply with Zeroflame fire retardant treatment meet the requirements of building control. Can I apply the product myself or do I need to have a specialist contractor apply and certify the work? |
Answer from Rawlins’ Technical Team:
You need to ascertain whether Zeroflame Fire Retardant Treatment meets the requirements of your building control officer for your particualr use. The product achieves BS EN 13823 & BS EN 11925-2 Single Burning Item Euroclass B-s1-d0 (equivalent to UK "Class 0" BS 476 Parts 6/7). A certificate is issued after use by completion of a simple form on the back of the label on the container. Zeroflame Fire Retardant Treatment does not require specialist application. | |
Marina Elwes on 2019-03-13 08:09:29 | Question:
Hello, I wonder if your clear product is suitable to treat OSB in a domestic setting and achieve fire rated status. |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment is not suitable for use on OSB. If you require a clear coating and wish to acheive BS Class 1/0 and/or EN Class B then we would recommend Thermoguard Fire Varnish BS Class 1/0 & EN Class B System. | |
Peter Campbell on 2019-01-10 07:45:15 | Question:
I am looking at using Zeroflame to coat exposed ties in a timber truss. Will I be able to paint this with water-based acrylic paint? Thank you. |
Answer from Rawlins’ Technical Team:
Assuming the areas in question to paint are solid, bare timber, waterborne stains or varnishes can be used over Zeroflame Fire Retardant Treatment as long as they are compatible, non-flammable and will dry. We always recommend to try a small sample area first to ensure the stain does not react with the Zeroflame Fire Retardant Treatment and will dry out. If you are intending to paint a colour then we would instead recommend applying Zinsser B-I-N, followed by Zeroflame Fire Retardant Paint. This will ensure no bleeding through of knots, stains, tannins, etc. from the wood into the final colour coat. Zeroflame Fire Retardant Paint can be either left as a white finish or overcoated. When overcoating use only waterborne latex paints, applied at a total dry film thickness not exceeding 35 microns. | |
AVN on 2019-01-09 16:10:58 | Question:
I would like to enquire about the suitability of this product( or another recommendation for the following use) Interior Douglas Fir timber, to be finished with lye and soap or lye and oil (some version of linseed or a similar variant). The above treatment is a standard natural treatment for wood and is used extensively in most Scandinavian countries. The lye is a very weak solution (link removed) or similar. The oil specs are as follows (link removed). Ofcourse we would do a trial, just wanted to ascertain any chemical side effects/interactions between the two that you would be aware of Many thanks AVN. |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment would not be suitable but the manufacturers of Hydron Nu-Flame Clear Impregnation have advised they see no issue using the suggested products with theirs, subject to a successful trial as you have recommended. | |
Stephen Kracher on 2018-12-10 08:47:25 | Question:
would your product be suitable to fireproof a lintle for a fire place? |
Answer from Rawlins’ Technical Team:
Assuming the lintel is timber, solid and bare then yes Zeroflame Fire Retardant Treatment could be applied to it. However it is important to note that this will not 'insulate' the timber from heat, the lintel could still reach unsafe temperatures and the proximity of this to your fire should be checked by a professional on site who can confirm suitability. | |
me on 2018-12-03 22:13:21 | Question:
Hello I wanted to know if a wood water proofing treatment such as berettin and sodolin would be suitable to use over this product? |
Answer from Rawlins’ Technical Team:
Waterborne stains or varnishes can be used over Zeroflame Fire Retardant Treatment as long as they are compatible, non-flammable and will dry. We always recommend to try a small sample area first to ensure the stain does not react with the Zeroflame Fire Retardant Treatment and will dry out. | |
Jason on 2018-11-06 07:08:51 | Question:
Hello, I am assuming this can be used on a standard external grade treated timber? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment has been tested on multiple timber species, the most popular being; Pine, Spruce, UK Larch, Siberian Larch, Western Red Cedar, Oak and Thermowood. All these woods when the treatment is applied to the bare timber at the specified spreading rate achieved Euroclass B-s1-d0. | |
Danni mitchell on 2018-11-02 09:56:15 | Question:
Hello, would this product work on a timber cabin constructed of 60mm thick Scandinavian pine? If so what volume would you suggest purchasing. The cabin is 18ft by 20ft and 8ft high. Kind regards |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment is suitable for use on bare pine and would achieve Euroclass B. The measurements given of your cabin total approximately 57m², but we would assume that you have some areas to deduct from this such as windows, doors, etc. Each 5L will treat 18.5m² and 20L 74m². | |
JERRY on 2018-08-14 21:49:16 | Question:
i am considering using this product for class 0 treatment to T and g softwood cladding on a vaulted barn ceiling , the ceiling is nearly 200m2. To apply 2 coat to both sides of the cladding its going to cost over 5.5k including vat just for the materials!! can i just treat the room side and apply 1 coat ? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment needs to be applied at a rate of 270ml per m² of bare timber (360ml per m² when applying to cedar), whether you achieve this application rate in 1 coat or more doesn't matter, as long as it is achieved. Applying by spray (i.e. knapsack sprayer, HVLP, etc.) usually allows applicators to achieve the required coverage rates in 1 coat, applying by brush/roller would usually take more, i.e. 2-3 coats. Based on 200m² you would require 55 litres (73 litres if cedar), what needs to be protected on your building can only be advised by your authority for the project, so you should refer to them for clarification as to whether both sides need to be treated for example. | |
Martin on 2018-08-13 07:32:32 | Question:
Hi, Can this product be applied and protect a oak beam from heat approximately 300mm above a multi fuel burner, Thanks |
Answer from Rawlins’ Technical Team:
The Zeroflame Fire Retardant Treatment will protect the beam from burning but not from charring and blackening. | |
Neville Horton on 2018-08-08 12:40:28 | Question:
Hello In context of a garden shed. Most t & g wood cladding is supplied new already treated with anti rot/pest coating. Will the Zero flame still work if applied over it? Thanks Neville |
Answer from Rawlins’ Technical Team:
Most timber in this situation is tanalised to protect against rot. Tanalising does not generally seal the timber so the Zeroflame Treatment can still penetrate. It is always good practice to drop some water onto the substrate to test how absorbent it is. If water can soak into the timber the Zeroflame Treatment will also be able to penetrate. | |
clive griffiths on 2018-07-19 09:59:40 | Question:
Can this product be used on 9mm cladding and achieve the fire safety |
Answer from Rawlins’ Technical Team:
No, on pine the face of the timber needs to be a minimum of 14mm and on spruce a minimum of 18mm to achieve Euroclass B (BS Class 0) Fire Propagation and Spread of Flame fire protection. | |
Stephen OReilly on 2018-06-27 14:40:25 | Question:
A section of the underside of a wooden staircase , which in located in a understairs cupboard ,needs to be fire proofed , as a electrical fuse box is located in the cupboard . Would your product be suitable for this ? Thank you |
Answer from Rawlins’ Technical Team:
Assuming the timber in question is bare and natural (i.e. not man made MDF, plywood, OSB, etc.) then Zeroflame Fire Retardant Treatment could be applied to upgrade the surfaces to Euroclass B (BS Class 0) Fire Propagation and Spread of Flame fire protection. However, usually this sort of location would require 30 or 60min protection, if this is the case you would instead need to look at Thermoguard Timbercoat 30 & 60 Minute System. | |
Jacqui Watson on 2018-06-09 06:13:17 | Question:
Is this the correct product for fire protecting chestnut cladding on the external wall of my extension? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment achieves Euroclass B (BS Class 0) Fire Propagation and Spread of Flame fire protection on bare, solid timbers. You must ensure this level of fire protection is acceptable to your authority for the requirements of your project before use. If this is not the correct level of protection required by your authority please contact our Technical Department who will be able to provide an alternative product/system for you. | |
Dean Smith on 2018-05-24 14:41:23 | Question:
We are using recently felled Larch which has only been airdried is this product suitable. Kind regards Dean |
Answer from Rawlins’ Technical Team:
The timber should have less than 20% moisture content. We would also recommend you do a drop test with water to see whether it can soak in. As always we would recommend you do a small test area before coating the full project to confirm suitability. | |
Howie on 2018-04-19 15:36:33 | Question:
Is this suitable for tanalised wood? |
Answer from Rawlins’ Technical Team:
Yes, tanalising timber doesn't normally seal it so the Zeroflame Fire Retardant Treatment can still soak in. If in doubt, try a drop test with water. | |
roula on 2018-04-04 10:05:58 | Question:
can you please advise on fire retardant product that could be used for solid maple wood floor . product shall keep the wood aspect unchanged. kind regards, Roula |
Answer from Rawlins’ Technical Team:
We don't know of a problem with maple wood but as long as the maximum density is no more than 780 kg per m3 then it should be fine. A drop test with water will also show whether Zeroflame Treatment can soak in. We recommend you try a small area first to assess if there is any colour change. | |
LENA BALESI on 2018-03-06 19:36:15 | Question:
All leaseholders have to have a fireproof door in a block of flats built in the 1930ies. They all have to be an exact replica of the existing doors which are hollow. Would it be possible to strip the doors and apply your fire retardent paint to bring them up to 30 mins resistance time? With many thanks Lena Balesi |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment achieves Euroclass B Fire Propagation and Spread of Flame on solid timbers, not 30 minute protection. The products we do have to provide 30 minutes fire resistance to doors (Door Upgrade Kits) cannot be applied to hollow doors. | |
Jonathan Potts on 2018-03-04 13:54:55 | Question:
Can you please advise on the wood stains that are compatible with the Zeroflame Fire Retardant Treatment. I am looking for the specific manufacturer and product names that have been tested with Zeroflame. |
Answer from Rawlins’ Technical Team:
Dedicated topcoats for Zeroflame Fire Retardant Treatment are being looked at but at present the advice is any waterborne stain can be used over Zeroflame Fire Retardant Treatment as long as it is compatible, non-flammable and will dry. We always recommend to try a small sample area first to ensure the stain does not react with Zeroflame Fire Retardant Treatment and will dry out. | |
paul sharpe on 2018-02-06 11:50:24 | Question:
Can this product be used on a boundary on featheredge cladding? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment can be used on internal or external bare wood. It is regularly used on cladding and achieves Euroclass B (BS Class 0) Fire Propagation and Spread of Flame fire protection on solid timbers. | |
louise killip on 2018-02-02 12:50:44 | Question:
hi, please can advise which paints or stains are compatible to use over timber that is coated with Zeroflame FR Treatments? Thanks |
Answer from Rawlins’ Technical Team:
Waterborne paints and varnishes are recommended for overcoating Zeroflame Fire Retardant Treatment. | |
Paul shipway on 2018-02-01 08:03:37 | Question:
Do you have a copy of the test certificate. We are Firas approved and need to be sure all products have been tested. |
Answer from Rawlins’ Technical Team:
Yes, a copy has been forwarded to your email address. | |
Dave Budworth on 2017-03-29 11:14:57 | Question:
Hi, Can Zero Flame be used on cedar cladding to achieve Building Regs requirements for non combustible materials on Dormer roof structures?
If so, does the product need to be applied to both sides of the cladding (i.e inner and outer faces)?
and would the product effect the natural weathering of cedar cladding over time if applied to outer faces?
Thanks |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment achieves Euroclass B (BS Class 0) Fire Propagation and Spread of Flame fire protection on solid timber. You will need to refer to your authority to ensure this is the level of fire protection they are expecting you to achieve. Due to it being a Surface Spread of Flame rating usually only the sides exposed to fire would need to be treated. Finally, this product would NOT stop or affect the natural weathering process of the wood. | |
graham walsgrove on 2017-03-15 15:14:04 | Question:
Hi could you please tell me if your products have undergone third party testing and if so by whom??
It's just your product has been specified for a Building Regulation application and we need to know if it's been tested
Many thanks |
Answer from Rawlins’ Technical Team:
We have sent copies of the test data to your email address. | |
Michael on 2016-11-24 22:46:45 | Question:
Would this be suitable for a fire surround/mantle? The fire Stove sides will be 100-120 mm from the upright beams. So need some kind of retardant to resist heat! |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment would certainly increase fire resistance of the timber surrounding your fire but it can't be used as a substitute for the correct installation and required distances of your fireplace. We have written an extensive article on Painting the Walls around a Fireplace or Multi Fuel Stove which can be found HERE. | |
roger lister on 2016-07-21 12:57:48 | Question:
will this product fireproof building felt if not any ideas would be helpful
Regards
Roger |
Answer from Rawlins’ Technical Team:
No, Zeroflame Fire Retardant Treatment cannot be used on felt. Rust-Oleum Mathys Dacfill HZ has an external fire exposure roof test to BS 476: Part 3: 2004 and achieved EXT.F.AC | |
DEB on 2016-07-16 17:22:44 | Question:
Hi can zero flame be applied ontop of a impregnation fluid to a log cabin |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment can be applied to pressure treated timber as long as the fluid used was water based.
| |
Jonathan cooper on 2016-01-23 17:30:58 | Question:
Could Zeroflame Fire Retardant Treatment be used on top of painted, unsealed timber or would the wood need to be sanded back first? Second, could you paint over the top once applied rather than applying stain/varnish? |
Answer from Rawlins’ Technical Team:
Zeroflame Fire Retardant Treatment is a penetrative fluid that must be applied to porous, bare timber in order for it to soak in to the wood to be effective. It is not suitable for application over any previous coatings, these must be removed by stripping or sanding prior to application. Once Zeroflame Fire Retardant Treatment has been applied and allowed to sufficiently dry (usually around 7 days), you may apply certain stains, varnishes and paints for decoration purposes (contact our Technical Department for details of coatings that are suitable). | |
Rob Smith on 2016-01-08 11:51:38 | Question:
Is Zeroflame Fire Retardant Treatment suitable for use on Bamboo? This is for use in a hotel. |
Answer from Rawlins’ Technical Team:
It isn't, but we do have a clear varnish system that is. Please contact our Technical Department on 0113 2455450 for details. | |
Robert Jakes on 2015-06-03 17:08:23 | Question:
Hi, we've just made some large flowers (out of willow withies, lantern tissue and pva) for decor to go inside a marquee at Glastonbury, can you tell us if Zeroflame Fire Retardant Treatment would be suitable to coat them with as a fire retardant? |
Answer from Rawlins’ Technical Team:
No, the Zeroflame Fire Retardant Treatment would not be suitable but our 1012 Fire Retardant Solution would be. | |
IMPORTANT SHIPPING & DELIVERY INFORMATION
Zeroflame Fire Retardant Treatment is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
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